mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-03-30 12:49:40 +00:00
Code Issues 1 Projects Releases Wiki Activity

matroskademux: Improve detection of being stuck at the same offset

Browse source 
Only error out if we read from the same position again and got the
same length. Just the same position is not necessarily enough.
This commit is contained in:
Sebastian Dröge 2014-12-29 15:35:19 +01:00
parent e596a3b6a7
commit 67d4b85d6a
1 changed files with 11 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
gst/matroska/matroska-demux.c
View file

@ -1541,6 +1541,7 @@ gst_matroska_demux_search_cluster (GstMatroskaDemux * demux, gint64 * pos)
guint64 length;
guint32 id;
guint needed;
gint64 oldpos, oldlength;
orig_offset = demux->common.offset;
@ -1569,6 +1570,7 @@ gst_matroska_demux_search_cluster (GstMatroskaDemux * demux, gint64 * pos)
}
/* read in at newpos and scan for ebml cluster id */
oldpos = oldlength = -1;
while (1) {
GstByteReader reader;
gint cluster_pos;
@ -1587,6 +1589,15 @@ gst_matroska_demux_search_cluster (GstMatroskaDemux * demux, gint64 * pos)
gst_buffer_map (buf, &map, GST_MAP_READ);
data = map.data;
size = map.size;
if (oldpos == newpos && oldlength == map.size) {
GST_ERROR_OBJECT (demux, "Stuck at same position");
ret = GST_FLOW_ERROR;
goto exit;
} else {
oldpos = newpos;
oldlength = map.size;
}
gst_byte_reader_init (&reader, data, size);
resume:
cluster_pos = gst_byte_reader_masked_scan_uint32 (&reader, 0xffffffff,
@ -1610,11 +1621,6 @@ gst_matroska_demux_search_cluster (GstMatroskaDemux * demux, gint64 * pos)
GST_DEBUG_OBJECT (demux, "cluster is first cluster -> OK");
break;
}
if (newpos == demux->common.offset) {
GST_ERROR_OBJECT (demux, "Stuck at the same offset");
ret = GST_FLOW_ERROR;
goto exit;
}
demux->common.offset = newpos;
ret = gst_matroska_read_common_peek_id_length_pull (&demux->common,
GST_ELEMENT_CAST (demux), &id, &length, &needed);